US 9,882,733 B2 · Migrating eMBMS into a cloud computing system

Abstract

A method is executed by a multimedia broadcast multicast services gateway (MBMS-GW) to offload data plane traffic, where the data plane traffic is enhanced MBMS (e MBMS) downlink traffic for a data plane interface Internet Protocol (IP) multicast transport between the MBMS-GW and an enhanced node B (e Node B). The method includes allocating an IP multicast address and a common tunnel endpoint identifier (C-TEID) for an MBMS session between node B (e Node B) and a broadcast multicast service center (BM-SC). The method also includes configuring the at least one network element to match an IP address and a user datagram protocol (UDP) port of incoming data plane traffic, to modify the IP address and UDP port to the IP multicast address and associated UDP port, and to push a general packed radio service (GPRS) tunneling protocol (GTP) user data (GTP-U) header including the C-TEID onto the data plane traffic.

Claims18

Dependent claims

A method executed by a network element implementing a multimedia broadcast multicast services gateway (MBMS-GW) to offload data plane traffic to at least one network element, where the data plane traffic is enhanced MBMS (eMBMS) downlink traffic for a data plane interface Internet Protocol (IP) multicast transport between the MBMS-GW and an enhanced node B (eNodeB), the method comprising:

allocating an IP multicast address and a common tunnel endpoint identifier (C-TEID) for an MBMS session between the eNodeB and a broadcast multicast service center (BM-SC);
and
configuring a flow switch of the at least one network element via a flow control protocol, wherein the flow switch of the at least one network element is configured to:
i) match an IP address and a user datagram protocol (UDP) port of incoming data plane traffic,
ii) modify the IP address and UDP port to the IP multicast address and associated UDP port, and
iii) push a general packed radio service (GPRS) tunneling protocol (GTP) user data (GTP-U) header including the C-TEID for the MBMS session onto the data plane traffic.

3 more elements

A network element implementing a multimedia broadcast multicast services gateway (MBMS-GW) to offload data plane traffic to at least one network element, where the data plane traffic is enhanced MBMS (eMBMS) downlink traffic for a data plane interface Internet Protocol (IP) multicast transport between the MBMS-GW and an enhanced node B (eNodeB), the network element comprising:

a receiver configured to receive the data traffic;
a transmitter configured to transmit the data traffic;
and
a computing processor configured to execute an MBMS module and an MBMS controller module,
the MBMS module configured to allocate an IP multicast address and a control tunnel endpoint identifier (C-TEID) for an MBMS session between the eNodeB and a broadcast multicast service center (BM-SC);
and
the MBMS controller module configured to configure a flow switch of the at least one network element via a flow control protocol, wherein the flow switch of the at least one network element is configured to:
i) match an IP address and a user datagram protocol (UDP) port of incoming data plane traffic,
ii) modify the IP address to the IP multicast address and associated UDP port, and
iii) push a general packed radio service (GPRS) tunneling protocol (GTP) user data (GTP-U) header including the C-TEID onto the data plane traffic.

7 more elements

Dependencies are inferred from the claim text.

Migrating eMBMS into a cloud computing system

Life of this patent

Migrating eMBMS into a cloud computing system

Life of this patent

Abstract

Claims18